東北地方における亜高山帯の植生史について : III.八甲田山
1987 年 37 巻 2 号 p. 107-117
詳細
1987 年 37 巻 2 号 p. 107-117
Pollen analyses were made on materials collected from the Hakkoda Mountains. Comparative studies made between these pollen diagrams and those of previous workers enabled the clarification of the vegetational history of the subalpine zone of this mountain range. Results show that 8500-4500 years B.P., the subalpine zone of this area was covered by meadow-like vegetation, and that between 4500-2500 years B.P. this was succeeded by a cover of subalpine deciduous scrub chiefly consisting of Quercus. The Abies mariesit forest began increasing in the subalpine zone about 3000 years ago, and has markedly extended its cover there during the last 1500 years.
